My 2012 Tahoe has a place for a secondary battery.

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PG01

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Yes, it IS an option for the PPV. It's usually a 730 CCA auxili
IIRC, all Tahoes come with two trays, but you only get the battery and cabling if your truck has the optional auxiliary battery. I don't remember what the SEO option is for that.

Seo 6a6 parallel install.... gm cables available on amazon
 

PG01

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Ha, I forgot to post....

GM part# 25825642 positive battery cable http://www.amazon.com/ACDelco-25825...=UTF8&qid=1345638137&sr=8-1&keywords=25825642

GM part #25876896 negative battery cable. http://www.amazon.com/ACDelco-25876...=UTF8&qid=1345638137&sr=8-2&keywords=25825642

GM part #14005061 battery hold down. Or dorman

GM part #11509853 hold down bolt.

10 x 1.5 x 25 mm bolt and washer -for alt neg cable ground

This is all that is needed plus batteries. The positive battery cable routes under the motor at the front of the oil pan near some other cables and includes clips to attach it to a plastic piece that already has holes in it for the cable clips. It then attaches to the starter on the same stud as the main battery. I attached the negative cable to the motor at a threaded hole in the head near the alternator. Exactly what i did plus bought 2 brand new diehard gold batteries.....
 

2011SSVHOE

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The front corner of mine is dedicated to my catch can now. I may still find a way to keep a roll of paper towels there and dry. So much easier to have them handy to check your fluid levels.

you could probably get a section of 6in PVC pipe with some ends to store your paper towels and mount it on the battery tray
 

MD Tahoe 13

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My 2011 SSV came with two batteries. Crazy secondary wiring harness was installed at the factory. Second battery is for light bars, strobes, radios, etc. Best part is that you can give a jump start from either side of the vehicle.

I have a 2013 SSV. Which battery of the two starts the truck? I'd prefer to only have one battery if I can get by.
 

PG01

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I have a 2013 SSV. Which battery of the two starts the truck? I'd prefer to only have one battery if I can get by.
Factory single is in passenger rear location, extra is front drivers. If parallel setup both start vehicle so remove positive fronm second battery down to starter and neg to alt bracket.
 

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